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US 2006/0050440 A1Published application
Multilayer narrow pitch tape head array
AssigneeHitachi Global Storage Technologies Netherlands B. V.
InventorsEdward Pong Lee, David Seagle
Life of this patent
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Abstract
The structure for a narrow pitch tape head array is disclosed. Narrow pitch is obtained by offsetting the location of the write gaps of successively stacked coplanar head arrays. A compact structure with lower fabrication cost is obtained by sharing magnetic pole layers between the stacked co-planar arrays.
Claims27
A thin film head array comprising:
- a first pole layer, a third pole layer, and a second pole layer between said first and said third pole layers;
- a first write head having a first upper pole and a first lower pole, said first upper pole comprising said second pole layer, said first lower pole comprising said first pole layer;
- and,
- a second write head having a second upper pole and a second lower pole, said second upper pole comprising said third pole layer, said second lower pole comprising said second pole layer.
1 more element
A thin film head array comprising:
- a first pole layer, a third pole layer, and a second pole layer between said first and said third pole layers;
- a plurality of first write heads having a first upper pole and a first lower pole, said first upper pole comprising said second pole layer, said first lower pole comprising said first pole layer;
- and,
- a plurality of second write heads having a second upper pole and a second lower pole, said second upper pole comprising said third pole layer, said second lower pole comprising said second pole layer.
1 more element
A method for making a thin film head array comprising:
- providing a substrate having a top surface;
- depositing a first pole layer on said top surface of said substrate;
- depositing a first lower pole tip on a top surface of said first pole layer;
- depositing a first write gap layer on a top surface of said first lower pole tip;
- depositing a second pole layer on a top surface of said first write gap layer;
- depositing a second lower pole tip on a top surface of said second pole layer;
- depositing a second write gap layer on a top surface of said second lower pole tip;
- and,
- depositing a third pole layer on a top surface of said second write gap layer.
6 more elements
A method for making a thin film head array comprising:
- providing a substrate having a top surface;
- depositing a first pole layer on said top surface of said substrate;
- depositing a plurality of first lower pole tips on a top surface of said first pole layer;
- depositing a first write gap layer on top surfaces of said plurality of first lower pole tips;
- depositing a second pole layer on a top surface of said first write gap layer;
- depositing a plurality of second lower pole tips on a top surface of said second pole layer;
- depositing a second write gap layer on top surfaces of said plurality of second lower pole tips;
- and,
- depositing a third pole layer on a top surface of said second write gap layer.
6 more elements
Dependencies are inferred from the claim text.